Recently Active Miscellaneous Questions

Two particles of mass 1 kg and 2 kg respectively moving with initial relative velocity 2 m/s collide with each other and stick together.What is the resultant loss in kinetic energy of the system ? ...

A complete disc and an annular disc of mass m have the same outer radius.Which has more moment of inertia about an axis perpendicular to the plane passing through the centre ? ...

A mass m splits into two parts m' and (m-m').What is the ratio of m' and (m-m') so that the gravitaional force of attraction is highest ? ...

The isothemal elasticity of an ideal gas is equal to ...

At which temperature Farenheight scale and Celsius scale give the same numerical value ? ...

The rms velocity between Hydrogen and Oxygen will be greater for ...

If d is the molecular diameter the mean free path of a gas molecule depends on ...

Three closed vessels A B and C contain only Oxygen only Nitrogen and a mixture of Oxygen and Nitrogen respectively at the same temperature.The average speed of Oxygen in A is V1, the verage speed of Ntrogen in B is V2 , then ...

Bursting os a cycle tyre is an ...

In a first order reaction the concentration of the reactant decreases from 800 mol/dm3 to 50 mol/dm3 in 2*104 sec. The rate constant of the reaction in sec-1 is ...

A gas X at 1 atm is bubbled through a solution containing a mixture of 1 M Y- and 1 M Z- at 25°C. If the reduction potential is in order Z>Y>X, then ...

The correct order of hybridization of the central atom in the following species NH3, [PtCl4]2-, and BCl3 is ...

Which of the following has zero dipole moment? ...

What transition in the hydrogen spectrum would have the same wavelength as the Balmer transition, n=4 to n=2 in the He+ spectrum? ...

The electric field of a charged metal conductor at the surface is ...

A set of n bateries are connected in series ; the orientation of them being same (say right side positive and left side negative) out of which k batteries are such that their orientation is opposite.What is the net emf of the ...

A capacitor is connected to a battery of votage V.Then a dielectric of strength K is inserted between the plates of the capacitor while it is still connected to the battey.What is the voltage across the plates of the capacito ...

*Image* What is the resistance between A and B ? ...

What is the probability os a nucleus to stay intact till t = mean life ? ...

*Image* A current-carrying conductor which is in the for ma of a sine wave given as y = A sinx lies on a magetic field. What is the force exerted by the magnetic field ? ...

In the transformer core is made of soft iron to reduce ...

A particles velocity is given as v = t + 1/t where t is the time.What is the minimum possible value of relative velocity between its image wrt a fixed plane mirror and itself ? ...

When NPN transistor is used as an amplifier ...

A mole of N2H4 loses ten moles of electrons to form a new compound Y. Assuming that all the nitrogen appears in the new compound, what is the oxidation state of nitrogen in Y?(there is no change in the oxidation number of ...

A solution is a mixture of 0.05 M NaCl and 0.05 M NaI. The conc. of iodide ion when AgCl just starts precipitating is equal to ( Ksp(AgCl)=10-10; Ksp(AgI)=4*10-16) ...

In decimolar solution, CH3COOH is ionised to the extent of 1.3%. If log1.3=0.11, what is the pH of the solution? ...

The equilibrium constant Kp for the reaction PCl5→PCl3+Cl2 is 1.6 at 200°C. The pressure at which PCl5 will be 50% dissociated at 200°C is ...

In what manner will increase of pressure affect the following equation? C(s)+H2O(g) → CO(g)+H2(g) ...

One mole of a non-ideal gas undergoes a change of state (2 atm, 3 L, 95 K)→(4 atm, 5 L, 245 K) with a change in internal energy, ΔU=30 L atm. The change in enthalpy(ΔH) of the process in L atm is ...

The correct expression relating molality(m), molarity(M), density(d), and molar mass(M2) of solute is ...